Fastener-affixing machine



F.) c. LUNDELL- PASTENEH AFFIXING MACHINE Filed 061:. 5, 1 19' a sheezswheet 1 INVENTOR (E. @M/

I M W ATTORNEY-S.

Ja 13, 1925. L 1,522,640

F. C. LUNDELL FASTBNER AFFIXING MACHINE Fileq Oct. 5 1919 3 Sheets-Sheet 2 i I I I "*3 f I I I v 1 10 o i l (I) lo 1 w m 9 I I I: u l a v w J o a g g 3 3 I;

N h T g o i" (9 $9 Q I m {I v 3 i 59 I g g 8 O 1 o :3 w 2 o o I O L Q 8 6 l I V 1 6) 8' o 9 I 9 I I v v I I s m N 1 v V In x u 0 i v g a o o 3g i E g w fi Z6 INVENTOR ATTORNEYS,

shown and described Patented Jan. 13, 1925.

' 'Qi ilifii.

- FRED C. LUNDELL, OF ZEROQKIIZEEIxl', NEW"-YORK,- ASS IGNOR '10 @ENSION ENVELOPE 00., INQ, OF BBOUKLYN, NEW YORK; A QORPOBA'EION OF NEW YORK.

. EASTENERrJAFFIXING MACHINE.

I eApplication filed. OctoberS, 1919. :Serial No. 328,156.

To all whom it may concern:

Be it known that I, Flinn G. LUNDE-LL, a citizen of theUmted. States of America,

residing in the borough of Brooklyn, city of -New- York, county of Kings,,State of New York, have invented an Improvement in :xFastener-Afiixing; l\'lachines, of which the following is a specification. v l/ly invention relates general-ly to machines for affixing fasteners to envelopes and more particularly to'improvements in the con- 'structi'on of machines foraffixing the socalled button andstring fastenershand to those machines in WVhl h thestring-is looped about a fastening eyelet such as themachine in the 'Trenchard patent, Number 1,258,829. Theprincipal obj ect of my invention is to provide, in a machine=of the-type indicated,

an improvement in one .of the co-operating parts ofthe string loo-pingmechanism whereby this mechanism will operate accurately and precisely to perform the string .looping operation.

in the drawings accompanying this specifor the purpose of In these drawings Figure lnis a-frontelevation of a complete machineembodying this illustrative form of my improvement;

" Figure 2-is a topplan view of the machine shown in Figure 1;

-Figur'e 31s a detailed vertical longitudinal section on the line 33 of- Figure 2;

,Flglll'fiSA: and 5 are sections similar to v Figure 3 butshowing the partsiind-ifi'erent 1 positions Figure 6 is a detail view of the connections between'the pin 131 and the plunger 120;

"Figure 7 :is av detail view showing the punches in riveting position; and

FiguresS and?) show a preferred form of fastener affixed to van envelope.

The machine illustrated ygenerally in Figures liand 2 functions to affixeto an en-,;

.pvelope all; the; parts needed to: provide a. complete string andabuttonfastener? and accordingly discloses :mechanism for aflixing a. washer to thebody of the: envelope as well .asmechan1sm for affixing a string, a washer,

and a reinforcing washer to the flap of the envelope. Inasmuch as my invention re lates principally to an improvementnn the. means for afiixmg'the strmg'under aiwasher,-.

.end thereof a :otherenda loosely mounted driving pulley affixing. the washer to the flap dope and for aiiixing thestring beneath this the mechanism for .aflixinga washer to the body of the envelope will be omitted from that the greaterpart :of the mechanism 1s mounted. upon a bedzplate or table .ported uponsuitable standards 2. A main shaft 3 is journalled in suitable bearings 4 1 supand 5 upon the bed plate land carries at one balance wheel 6 .and at the 7 which is arranged for connection with the shaft 3 through a suitable clutch mechwamsm which includes cooperating jaws 8 and 9. upon the shaft and the pulley hub respectively. This driving pulley 7 is rotated continuously during the operation of the machine, preferably by means of a belt driven by any suitable source of power. The complete operation of the machine in affixing-the fasteners to an envelope is preferably accomplished in one revolution of the main shaft 3 and forthis reason I preferto interpose; between the clutch pedal 16 and the xclutchitself a suitableclutch controlmechanism so designed as'to automatically disengage the pulley 7- from the shaft 3 at the end of one complete revolution and thus provideairest period for the removal of the I completedenvelopeand the insertion in the machine of anotherenvelope.

Driven from the shaft3 is suitable mechanism,:not-described, for affixing the washer to the body ofthe envelope. Also driven from :thisshaft is suitable mechanism for of theenve- Washer.- This latter mechanism consists in 1 means for forming. areinforcing washer, for :forming a washer, for feeding the eyelet, for 1 centering the .1 parts string;beneath the washer, and for securing and positioning the the entiredevice to the flapiof the envelope.

The washer forming means may comprise av plunger -100-slidably mounted in bore 101 in, a block 36;-mounted upon the bed plate 1 and asecond plunger 1:03.1uounted directly below the plunger 100-ina bore 104 in the block 36. These two plungers are suitably fastened :to anactuating block 102 vconnected to a cross head as which is operatedthroughazlink from-a crank arm III 44 secured to the end of a shaft 42 which, in turn, is mounted in bearings 43 on the table 1 and driven from the main shaft 3 by means of two similar bevel gears and 41 secured to the main shaft 3 and the jack shaft 42 respectively. The plunger 103 carries at its end a punch 108 which punches out a hole in the tape 107. The plunger constitutes a. movable anvil and is provided at its end with an upsetting die 105 provided with an outer edge 106 arranged to form a punch to cut out from the tape 107 a reinforcing washer concentric with a hole previously formed by the punch 108. A plate 30 is secured to a stationary part of the machine and carries a die to cooperate with the punch 108 and a die 109 to cooperate with the punch 106. The face of the'plate 30 is provided with a guideway 111 through which the tape 107 is drawn from a supply roll 112, which is mounted "upon a spindle 113 and held thereon by a yoke 114, over a curved guide 116 by a feed roll mounted upon a shaft 60 driven. in a manner to be hereinafter described. The tape 107 is held against the feed roll 115 by any suitablemeans such as the pressure roll 61 journalled in a sliding bearing block 62 which is pressed upwardly by a spring 63. To prevent over-running of thetape during the feeding operation a spring 117 is provided on the block 36 to hold the tape against the face. of the plate 30.

Aligned with the plunger 103 is a plunger 123 reciprocable in a. bore 299 in the block 121 and carrying at its forward end a punch 124. Just above the plunger 123 is a plunger aligned and cooperating with the plunger 100, slidably mounted in a bore 122 inthe block 124, and carrying at its outer end a punch 133 arranged to cut from a tape a washer concentric with a hole previously formed by the punch 124. Both plungers 120 and 123 are secured to an actuating block 125 which is operated through a link by a crank 129 secured to the end of a jack shaft 128 which, in turn, is mounted in a bearing 129 on the table 1 and driven by means: of similar bevel gears 126 and 127 secured respectively to the main shaft 3 and the jack shaft 128. A stationary die plate is mounted in front of the plungers 123 and 120 and provides a die 146 for the punch 124 and a die 147 for the punch 133. The face of the die plate 145 is provided with a suitable guideway 148 through which a strip of washer forming material 149 is drawn from a tape supply roll 150, which is mounted upon a spindle 151 and held thereon by a yoke 152 over a guide 153 by a feed roll 154 secured to a shaft 155 suitably journalled on the frame 1. A pressure roll 156 is provided to hold the tape against the feed roll 154 and is journalled in a sliding bearing block 157 which is pressed upwardly by a spring 158. A knurled roll 159 is provided on the end of the shaft 155 so that the tape may be fed forward by hand if desired. To prevent overrunning of the tape during the feeding operation a spring 281 is provided on the block 121 to hold the tape against the face of the die plate.

Suitable eyelet positioning mechanism is preferably mounted just in front of the plunger 120 and may comprise an. eyelet box 65 adapted to deliver eyelets down a chute 66 by means of mechanism suitable for the purpose and. driven by the main shaft 3 through suitable driving connections in such manner that it will release a single eyelet upon each complete revolution of the main shaft.

The plunger 120 is hollow and carries therein a centering pin 131 having an enlarged portion 280 slidable freely within the plunger 120 and a reduced portion freely slidable in a bore in thepunch 133. Formed upon the exterior of the section 280 is a rack 282 positioned to be engaged by a sector 283 pivoted at 284 and operated from the treadle 16 by means of a link 285 having a pin and slot connection with a crank arm 286 carried by the sector. Movement of the sector 283 is limited by a stop 290 carried by a stationary portion -of the machine. The section'280 is also provided with a series of teeth 287 which are engaged by a dog 288 carried by a leaf spring 289 mounted upon the plunger120. In order to facilitate automatic alignment, I prefer to form the tip of the centering pin 131 as a point 291 and the cooperating surface of the punch 106 as a. correspondingly shaped crater.

Loosely mounted upon the feed roll shaft 155 is a crank arm 168 and loosely mounted at its center upon the shaft 60 is a cross beam 165. A link 167 connects the lower end of the'cross beam 165 with the upwardly extending crank arm 168. Mounted upon the shaft 155 is a ratchet wheel 171 and carried by the crank arm 168 is a cooperating pawl 172- spring pressed into engagement with the ratchet wheel 171. Mounted on the shaft 60 is a similar ratchet wheel 169 and carried by the cross beam 165 is a similar paw1, 170 suitably spring pressed into engagement with the ratchet wheel 169.

Mounted upon the shaft 42 is a cam 160 which engages with a roller 162 pivoted upon a rod 164 connected to the upper end of the cross beam 165 and spring pressed toward the shaft 42.

It is desirable in fasteners of the type made by this machine that the fastening string be looped about the eyelet in order that it may be firmly fastened beneath the flanges thereof. In order to loop the string in-operly the pin 131 is projected from the plunger 120 so that the string may be wound ;come -together to fasten in place the it is being wound upon this pin'before the cooperating dies ey let, washer, and reinforcing'washer. The string is wound about the pin 131 by any suitable means such as' a. hollow gear 200 which is conccntriowith the. pin 131, of such diameter to permit the passage therethrough ofthe punch'133, operatively connected with the-main shaft preferably in such a manner that itwil1 'make 'four revolutions-for each revolution of the mam shaft, and provided with suit-able means for-gr'asp-' ing thestring. retaining the string while about the pin 131, and then releasing the string. Suit-able means are alsoprovided. for cutting off the string after it is wound about thetpin 131.

Upon depression of pedal 16 the clutch mechanism operated to cause the clutch sections 8 and 9 to interengage and remain in engagement until the main shaft 3 has made one complete revolution at which time they are automatically disengaged. This rotation of the main shaft causes a simultaneous rotation of the jack shafts 42 and 128 thus causing operation of the feed rolls 115 and 15 1 and also operating the actuating blocks 102 and 125 to cause reciprocation of the plungers 100, 103, 120, and 123. Rotation of the main shaft 3 also causes actuation of the eyelet feeding means to feed an eyelet into active position as shown in Figure 3. Actuation of the treadle also effects reciprocation of the pin 131 by means of the sector 283 and associated parts. In detail, the operation is as follows. The depression of the treadle immediately causes actuation of the main shaft and at once an eyelet is fed into position. The complete depression of the treadle causes the pin 131 to move forward through the eyelet. 90, the strip 14:9, and the envelope flap 271 so that the parts assume the position shown in Figure 1. The string winding mechanism. now operates to coil the string about the pin 131 as shown in Figure at. The plungers 100, 103, 120 and 123 now move forward under the action of the main shaft. The forward movement of the plunger causes: the anvil 106 to cut a reinforcing washer from the tape 107 and carry this washer into position against the envelope flap 271 and at the same time force back the pin 131 until these parts are in the position shown in Figure 5. The forward movement of the plunger 120 causes the punch 133 to pick up the eyelet 90, cut a washer from the strip 14:9, and then carry forward against the inside of the flap 271 the eyelet, the washer, and the string wound about the rod 131. A final movement of the plungers 100 and 120 causes the riveting of the eyelet to thus secure the washer, string, and reinforcing washer all in place on the envelope The forward movement of the plungers 103 and 123 causes the punches 108"and 124 to punch the tapes 107 and "1 19 to provide 'the central apertures for the washers which are to be used on the succeeding '-operation."During the above operations," the necessary relative movement between-the plunger'120 and the pin 131 has-been provided by the plunger dog 28S sliding over "the rod teeth "287. "Upon "retrograde movement of'the plunger, how ever, thecoaction between'tlie dog 288 and .the teeth 287 causes the pin 131 to be carried back with the plunger 120 to be in posi' tion for .thesubsequent operation. The operation of thexp inr 131 by positive means rather than by a-spring, and in particular by the 'means hereindisclosed, not only. eliminates a large part of any "trouble which may bevcaused by the pin 131 but also produces other beneficial results. The provision of centering means on the tip of the pin 131 and on the punch against which the pin abut-s assists in holding the pin. 131 in true central position and in not only as suring the fixation of the fastener at the proper place on the envelope but also in part or in whole effects other improvements in the operation of the machine.

Not only do advantages exist in my invent-ion other than those specifically pointed out above, but embodiments of my invention other than the present and modifications of the present embodiment may both be constructed. These other advantages, embodiments, and modifications are, therefore, included in my invention, especially as they are set forth in the appended claims.

I claim:

1. In a fastener setting machine, fastener setting dies, a fastener centering pin associated with one of said dies, and positive means for projecting said pin to active position comprising a reciprocating member normally operative to hold. said pin and said member in predetermined relation to each other but yieldable to permit relative reciprocation of said pin and member.

2. In an eyeletting machine, an eyelet upsetting and washer cutting plunger, an eyelet positioning pin mounted within said cutting plunger, for movement independent thereof, and normally protruding from the end thereof, means for causing said pin to move with said plunger, and positive means for moving said pin independently of said plunger. l

3. In an eyeletting machine, having an eyelet upsetting plunger and a pin mounted within said plunger for movement relative thereto, the combination of a source of power, a clutch, manually controlled clutch operating mechanism, and means interconnected with said clutch operating mechanism for advancing said pin prior to opcrating said clutch to connect the machine with the source of power.

4:. In an eyeletting machine, having an eyelet upsetting plunger and a pin mounted within said plunger for movement relative thereto, the combination of a source of power, a clutch, manually controlled clutch operating mechanism, means interconnected with said clutch operating mechanism for advancing said pin prior to operating said clutch to connect the machine with the source of power, and means providing a yielding connection between the pin and the plunger thereby to retract the former with the latter.

'5. In an eyeletting machine having an eyelet upsetting plunger and a pin mounted within said plunger for movement relative thereto, the combination of a source of power, means to connect said machine with the source of power, and means interconnected with said connecting means and operating with the same to, project said pin into operative position.

6. In an eyeletting machine having an eyelet upsetting plunger and a pin mounted within said plunger for movement relative thereto, the combination of a source of power, means to connect said machine with the source of power, means interconnected with said connecting means and operating with the same to project said pin] into operative position, and a slip connection between said pin and plunger operative to retract the former with the latter.

In testimony whereof, I have signed by name to this specification this 26th day of September 1919.

. FRED o. LUNDELL 

